Melanie Jayne Chisholm (born 12 January 1974), commonly known as Melanie C or Mel C, is an English singer and songwriter. She rose to fame in the mid-1990s as a member of the pop group the Spice Girls, in which she was nicknamed Sporty Spice. With over 100 million records sold worldwide, the Spice Girls are the best-selling female group of all time. The group went on an indefinite hiatus in 2000, before reuniting for a greatest hits album (2007) and two concert tours: the Return of the Spice Girls (2007–2008) and Spice World (2019). She is known for her unique and distinctive tone and her vocal ability.

Chisholm began a solo career in late 1998 on the single "When You're Gone" with Canadian rock singer Bryan Adams. She signed with Virgin Records to release her debut solo album Northern Star (1999). After the release of her second album, Reason (2003), Chisholm parted ways with Virgin Records and founded her own record company, Red Girl Records. Her third album, Beautiful Intentions (2005), was a commercial success in Europe and spawned the singles "Next Best Superstar" and "First Day of My Life". Her fourth album, This Time (2007), saw huge success in Portugal, staying at number one for nine weeks. Her later albums consist of The Sea (2011), Stages (2012), Version of Me (2016), and Melanie C (2020). Her ninth solo studio album, Sweat will be released 1 May 2026.

Chisholm is the recipient of numerous accolades, including three World Music Awards, five Brit Awards, three American Music Awards, four Billboard Music Awards, three MTV Europe Music Awards, one MTV Video Music Award, ten ASCAP awards, and one Juno Award. Her 2000 single "I Turn to You" won the Grammy Award for Best Remixed Recording, Non-Classical for the Hex Hector's remix. In 2009, Chisholm made her stage debut in the West End musical Blood Brothers, for which she was nominated for an Laurence Olivier Award. She has sold over 130 million records in her career and has earned over 335 worldwide certifications, including 44 Silver, Gold, and Platinum certifications as a solo artist.